People with diabetes should avoid consuming sugar as much as possible because sugar is extremely high in calories. When metabolized, it eventually breaks down into glucose, which can easily spike blood sugar levels. As long as diabetics maintain a regular diet with three meals a day, each containing carbohydrates, proteins, fats, and fresh vegetables, and avoid being picky eaters, they will generally get enough energy and nutrients without the need for additional sugar. Diabetics should only consume small amounts of sugar cubes when experiencing low blood sugar to raise their levels. In daily life, there is no need to consume sugar otherwise.